Does set flow all-tcp-mss override set flow tcp-mss ?
Knowledge Base ID: KB7952
Version: 2.0
Published: 07 Oct 2008
Updated: 07 Oct 2008
Categories: . ScreenOS

Summary:

When you have VPNs traffic and clear traffic, you have two commands to help prevent fragmentation of TCP traffic, below are the commands:

set flow tcp-mss (this command is for VPN TCP traffic)

set flow all-tcp-mss (this command is for Clear TCP Traffic)

Problem or Goal:
Will configuration set flow all-tcp-mss will override set flow tcp-mss ?

Solution:

No,  the All-tcp-mss does not override tcp-mss.

TCP-MSS is for VPN Traffic and All-tcp-mss is only for Clear Pass-thru Traffic.

Purpose:
Configuration